Adjusting and safety means for crusher-jaws.



E. H. MOYLE.

ADJUSTING AND SAFETY MEANS FOR CRUSHER JAWS.

APPLICATION FILED FEB. 1-2. Hi5.

1,281,655 Patented Oct. 8, 1918.

r L- I EDW ABD HENRY MOYLE, LOS ANGELES, QALIFORNIA.

ADJUSTING AND SAFETY MEANS FOR CRUSHER-JAWS.

To all whom it may concern:

Be it known that I, EDWARD HENRY Mom, acitizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a certain new and useful Adjustin and Safety Means for Crusher-Jaws, 0 which the following is a specification.

In a companion application I have shown, described and claimed a rock crusher, atented June 8th, 1915, No. 1,142,116. (1 in this application I do not wish to make such claims herein.

My invention relates to a crusher and pulverizer for rock and ores.

Objects of this invention are to provide a device for effectively reducing the rock or ore to a condition desired by successive stages, consisting in first breaking the rock or ore along the lines of least clevage, then crushing the same andfinally transforming the same into a pulverulent mass ofa desired mesh; to provide a simple device made of the fewest parts, readily dissociable; having a mlnlmum of. bearings convenient for transportation into diflicultly accessible places, and quickly assembled; to provide a crusher in which the degree of fineness of the ore or rock may be regulated during the operation of the same; to provide a device in which no material damage will be occasioned by the entry of any substance harder than that calculated for the crushing power of the jaws; and finally to provide an ad'ustment for the jaw of the crusher whic will be mechanical and simultaneous and said adjustment in actuation with the thrust bar. With these and other ob ects in view, this invention consists of the features, and details of construction, separatelyand in combination, described in connection with the accompanying drawings, and then more particularly pointed out in the claims.

--In the drawings,

Figure. 1 is a plan view of my rock crusher.

one of the side plates for adjusting the thrust bar as seen, lookgin the direction of the arrows3 in'Figs. l and 2.

Specification of Letters Patent.

Fi 4 is a. fragmentary vertical sectional detai taken from the line 4.-4 of Fig. 3.

In all, or nearly'all, types of rock crushers, the base is a solid heavy casting, with many bearings, requiring expensive and careful machining, and with a multiplicity of unequal strains, the weakest of which is not perceptible until actual disruption occurs. Generally the base in the ordinary class of crushers, consists of a massive sole plate, with weighty integral side and rear walls, which with the other necessary adjuncts of the machine, makes a cumbersome product, diflicult to transport, and more dificult if not impossible, to repair when fractured or broken. In elimination of these disadvantages, the present invention consists of two side plates 1 and 2, having suitable nan es 3 and 4, on the bottom, provided-with fiolt holes 5 and 8, for fastening the same to a suitable supporting structure. These platesare tied together at one end by a shaft 7, and rod 8, carrying a spacer tube or pipe 9, and at the other end by a trunnion 10, the shaft 7, and trunnion '10, serving additional purposes to appear hereinafter. Betw sen and fulcrumed in said plates by fulcrum pin or shaft 11, which also serves to tie said plates, is a lever or actuating crushing jaw 12, of cross-sectionally U- shaped structure at one.end, embracing and connected by a pin 13, with a strut 14, to

which reciprocatory motion is imparted,

through the medium of an eccentric 15, turned or fastened on said shaft 7, which carries on the outside of said lates, theusual fly wheels 16, and loose an fixed pulleys 17 and 18, respectively. The lever 12, has a double bearin on the strut 14, whereby the'friction is re need to a minimum and the wearing life increased, the pin 13, serviing principally to connect the lever with the strut. On said lever or actuating crushing aw 12,

19, by counter sunk head b0lts 19', the lane is removably fastened a crushing s 0e Patentedfict. 8, 1918. Application me'a February 12, 1915'.- Serial No. 7,720.

of said shoe is ribbed orfcorrugated or a portion. of. its length, as shown at dotted line 20, and terminates in a curvefllz, at a."

point below said ribs or corrugations. Th aforenamed trunnion .10, forms. a pivoted support or hearing for a jaw 22, to which is ged to be removably attached by countersunk bolts 23', 9. die plate 23, having a plane, ribbed or corrugated, as at 24, and terminating in a substantially compound or ogee curve 25, cooperating with said curve 21, of said shoe 19, to levigate the rock or ore. The jaw 22 is hung or supported off the center of gravity of the trunnion pin 10, in that position nearest to the lever or actuating crushing jaw 12, so that when the screws and 36 are drawn outwardly or away from the thrust bar 29 and the jaw 12, the bottom part of jaw will automatically back or retract relatively to the laws of gravity, and in the direction of the screws 35 and 36. The disposition of said shoe 19, and die plate 23, is in substantially the form of a Y,- the crushing of the rock, fed from a hopper 26, immediately above said shoe and die plate, proceeding regularly and uniformly until .the point between the oppositely disposed and interacting curves 21 and 25, is reached, where the final trituration takes place and the finished product discharges below said shoe and die plate. By reason of the corrugated planes of the shoe and die plate and the compound curves thereof, the rock or ore is crushed and powdered in successive steps to any desired mesh. In the wider chamber formed 'by the shoe and die plate, the crushing and breaking of the rock occurs by a reciprocatory motion of the lever,

. while the levigation of the rock occurs by a crushing jaw 12, and

between the face of the'jaw 22, and the die grinding motion of the curve of the shoe agalnst the curve of the die plate, such'motion being practically a circular one, since the lower end of the curve '21, of the shoe is virtually concentric, or nearly so, with the are described by the movement of the lever around the fulcrum point, while the rest of the curve is eccentric to such arc.

. Between the face of the lever or actuating the shoe 19, and also plate 23, is preferably interposed a lead filling or sheet, for the purpose of forming .a perfect seat for the shoe and die plate, the rough and unplaned surfaces of which feadily embed themselves into this plastic ayer. Y v

The die plate 23, normally rests on a shoulder 27 on the jaw 22, which as stated,

is pivotally hung-son the trunnion 10, and

thus always connected; in apivotal manner with the side plates 1 "2. The-lower portion of said'jaw, at -the rea'r and at approiimately a point oppositethe compound cur eof the die .plate 23, is with an integral abutment-28, which bears against cotter verized product, is efi'ected, screwsfifiand'36. The said a'thrust bar 29, transversely" disposed in elongated slots 30,9and held in position by ner; djustment of the thrust bar 29, to regulate the degree of fiileness of .the pulby adjusting thrust bar 29,

portion of th crushing having a key 31,.or in any, other suitable'mamlighter and stronger than may be of cast iron or any other material in the course of operation of the machine, the, thrust bar will break, and permit the jaw to swing on its trunnion, thus insuring the other vital parts of the machine against breakage. It will also be seen, that, as the adjustment forthrust bar, engages said bar through threaded orifices 35. and 36' in the rear of side plates 1 and 2 that said adjustment parts are also protected against breakage or undue strain. The breaking of the thrust bar at the critical moment of excessive strain, is of the utmost importa ce, since by so doing, the balance of the machln served intact. Being of inferior material and intended for just such events, replacee is prement of the sameis coupled with no great,

expense, effort or labor. As is obvious, the adjustment of the thrust bar may be made during. the operation of the crusher without affecting or hindering the process of pulverization.

On the rear of said plates 1 and 2, is bolt- ,ed or otherwise fastened, a plate 34:, having orifices for the accommodation of-screws 35 and 36, engaging threaded orifices 35 and 36 and extending inwardly from the rear I of said plates into the slots 30, in which is.

disposed the thrust bar 29. On said screws 35 and 36, are keyed or fastened spurgears 37 and 38, between and in m'esh'with which,

is anoperatihg gear 39, journaled on an arbor 40,. suitably supported in said plate 34.

Said spur gear 39, is provided with a bevel gear 41, with which is in mesh a bevel gear 42, pinned or keyed 0n the end of a shaft 43,

mounted in a suitable support 44, said shaft which the mechanism descri ed, may be operated in either direction, as required.

The usual side liners 46, may be provided on serving to fixed position. It will also be noted that on account of the few parts and the readiness wrench'recei end 45, by

with which the same area sembled and dis sociated, the whole machin may be'made other machines now in use.

What I claim is, r 1. A crushing mechanism comprising framing-an adj ustable jaw mounted therein,

hind the said jaw for a thrust bar in guideways for adjustment, and extended transversely in the framing beforming an abutment therefor, screws bearing against said thrust bar for regulating the pressure upon the jaw, spur gears fastened to said screws, screws engaging with threaded orifices, an

operating gear adapted to mesh with the said spur gears, and means for rotating said gears fastened to said screws, when the thrust bar is to be adjusted.

2. A rock crusher mechanism having an adjustable crushing jaw, a breakable thrust bar extending transversely of the jaw and behind the same, screws adapted to engage the end portions on said thrust bar, spur gears fastened on said screws for turning them, and operating gears intermeshing with said spur gears, a bevel gear integral with said operating gear, a second bevel gear for actuating the first mentioned bevel gear, and a bracket carrying the same whereby the ends of the thrust bar may be simultaneously and equally moved.

3. In a rock crusher a frame, an adjustable jaw mounted between the sides of the frame, a breakable thrust bar passed through the frame and behind the jaw, screw means engaging the ends of the thrust bar, spur gears fastened upon the screws'so as to turn the same, and intermediate spur gears intermeshing with said screw spur gears for securing a simultaneous equal movement in said screws for advancing the thrust bar, the jaw engaging the said thrust bar between the said screws, whereby the said bar may be sheared, or broken by excessive strain upon the said jaw.

. 4. A rock crushing mechanism comprising side plates suitably spaced apart, an adjustable crushing jaw suspended between said. side plates, the said side plates having openings formed therein, adjacent to the swinging end of said jaw, a thrust bar inserted through said openings and behind the said jaw for forming an abutment for said jaw, feeding mechanism for setting up the said thrust bar to control the degree of fineness in the materials crushed, within the breaking limit of said thrust rushing member operating between the sides of the frame, opposite said jaw.

5. A rock crushing mechanism comprising side plates forming a frame and having an adjustable crushing jaw pivoted transversely between them, a lever crushing mechanism also mounted between said plates, the said plates having apertures site the lower swinging end of the crushing jaw, and a safety breakable thrust bar extending transversely through the side apertures in the side walls, and having its central portion arranged to bear strains upon adjustable j aw,

bar, and a lever in their walls oppothe crushing jaw, and means for adjusting the breakable bar in the side openings for regulating the fineness of materials crushed.

6. In a rock crusher side plates, an adjustable jaw trunnioned at its upper end and interposed between said side plates, an adjustable thrust bar extending between and through said side plates, adjustable means in the lower part of each side plate for moving the thrust bar sidewise toward said jaw to regulate the strain necessary to break the same, and mechanical lateral means for simultaneously operating said adjustable means-for moving the bar to adjust said aw.

7. A rock crusher comprising side plates, an adjustable crushing jaw mounted between them, a transverse thrust bar extending across the said jaw, forming a breakable abutment therefor under excessive strains, adjustable means mounted in said plates and engaging the bar out of alinement with the said jaw, the said side plates inclosing the said screws sufficiently to protect them when the bar is broken, and intermeshing gearing for simultaneously adjusting the said screws whether the crusher is in operation or not.

8. A rock crusher comprising an adjustable crushing jaw and a cooperating movable jaw, side plates having the said jaws between them, abutment screws carried by the side plates, a thrust bar bearing at its ends on said abutment screws and bridging thespace between them, to support the said and intermeshing gearlng for simultaneously adjusting the said screws to move the thrust bar toward the adjustable jaw.

' 9. In an ore crusher, a frame comprised of a plurality of side plates removably con gagement with the adjustable crushing jaw, for setting the limit of the breaking strain, means for operating the spur gears and screws, and means for reciprocating the lever or actuating crushing jaw,

In testimony whereof I aiiix my signature in the presence of two witnesses:

EDWARD HENRY MOYLE.

Witnesses:

G. M. SWINDUE, R. K. Voonnrns.

by which the said thrust bar cal. be projected or brought into en- 

